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Message-ID: <b9d6786d-5d7e-0174-dd34-2e0b5e9919b8@broadcom.com>
Date:   Fri, 21 Jan 2022 08:35:43 +0100
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From:   Arend van Spriel <arend.vanspriel@broadcom.com>
Subject: Re: [PATCH v2 26/35] brcmfmac: cfg80211: Pass the PMK in binary
 instead of hex
To:     Hector Martin <marcan@marcan.st>,
        Kalle Valo <kvalo@codeaurora.org>,
        "David S. Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Len Brown <lenb@kernel.org>,
        Arend van Spriel <aspriel@gmail.com>,
        Franky Lin <franky.lin@broadcom.com>,
        Hante Meuleman <hante.meuleman@broadcom.com>,
        Chi-hsien Lin <chi-hsien.lin@infineon.com>,
        Wright Feng <wright.feng@infineon.com>,
        Dmitry Osipenko <digetx@gmail.com>
Cc:     Sven Peter <sven@svenpeter.dev>,
        Alyssa Rosenzweig <alyssa@rosenzweig.io>,
        Mark Kettenis <kettenis@openbsd.org>,
        =?UTF-8?B?UmFmYcWCIE1pxYJlY2tp?= <zajec5@gmail.com>,
        Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>,
        Linus Walleij <linus.walleij@linaro.org>,
        Hans de Goede <hdegoede@redhat.com>,
        "John W. Linville" <linville@tuxdriver.com>,
        "brian m. carlson" <sandals@crustytoothpaste.net>,
        Andy Shevchenko <andy.shevchenko@gmail.com>,
        linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-acpi@vger.kernel.org, brcm80211-dev-list.pdl@broadcom.com,
        SHA-cyfmac-dev-list@infineon.com
References: <20220104072658.69756-1-marcan@marcan.st>
 <20220104072658.69756-27-marcan@marcan.st>
In-Reply-To: <20220104072658.69756-27-marcan@marcan.st>
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On 1/4/2022 8:26 AM, Hector Martin wrote:
> Apparently the hex passphrase mechanism does not work on newer
> chips/firmware (e.g. BCM4387). It seems there was a simple way of
> passing it in binary all along, so use that and avoid the hexification.
> 
> OpenBSD has been doing it like this from the beginning, so this should
> work on all chips.
> 
> Also clear the structure before setting the PMK. This was leaking
> uninitialized stack contents to the device.
> 
> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
> Signed-off-by: Hector Martin <marcan@marcan.st>
> ---
>   .../wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 13 +++++++------
>   1 file changed, 7 insertions(+), 6 deletions(-)

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